trans: New random translator.

Previously, the Hurd included a translator providing /dev/random and
/dev/urandom based on a source copy of the random number generator
found in classic GnuPG.

The new random translator is using the SHAKE128 algorithm from the
SHA-3 family as the underlying cryptographic primitive.  Being a
sponge construction, it allows the extraction of arbitrary amounts of
pseudorandom data.  It is continuously fed entropy by hashing system
state that is hard to predict.

* Makefile (prog-subdirs): Remove 'random'.
* NEWS: Update.
* random/Makefile: Delete file.
* random/TODO: Likewise.
* random/gnupg-bithelp.h: Likewise.
* random/gnupg-glue.h: Likewise.
* random/gnupg-random.c: Likewise.
* random/gnupg-random.h: Likewise.
* random/gnupg-rmd.h: Likewise.
* random/gnupg-rmd160.c: Likewise.
* random/random.h: Likewise.
* sutils/MAKEDEV.sh (random): Create node.
(urandom): The new translator is both secure and non-blocking.  Create
a link from urandom to random for compatibility with Linux.
* trans/Makefile (targets): Add 'random'.
* trans/random.c: Move the skeleton of the old random translator here,
but replace the PRNG with SHAKE128.  Remove all dubious attempts of
accounting for entropy.  Do not block ever.

1 files changed, 0 insertions, 32 deletions

diff --git a/random/random.h b/random/random.h
deleted file mode 100644
index a38a4177..00000000
--- a/random/random.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/* random.c - A single-file translator providing random data
-   Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or
-   modify it under the terms of the GNU General Public License as
-   published by the Free Software Foundation; either version 2, or (at
-   your option) any later version.
-
-   This program is distributed in the hope that it will be useful, but
-   WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
-
-#ifndef __RANDOM_H__
-#define __RANDOM_H__
-
-/* How many random bytes to gather at most.
-   XXX: Should be at least POOLSIZE.  */
-#define GATHERBUFSIZE 32768
-
-/* The random bytes we collected.  */
-extern char gatherbuf[GATHERBUFSIZE];
-
-/* The current positions in gatherbuf[].  */
-extern int gatherrpos;
-extern int gatherwpos;
-
-#endif